int main(int argc, char** argv){
  if (4 != argc)
  {
    printf("Nombre de param\212tres insuffisants");
    return 1;
  }

  str_replace_first(argv[1], argv[2], argv[3]);

  return 0;
}
int main (void){
	char a[] = "hello";
	char b[] = "goodbye";
	char c[] = "world";
	printf("%d\n",str_all_alphabets(a)==1);
	printf("%d\n",str_all_alphabets(b)==1);
	printf("%d\n",str_all_alphabets(c)==1);
	printf("%d\n",str_has_alphabet(a)==1);
	printf("%d\n",str_has_alphabet(b)==1);
	printf("%d\n",str_has_alphabet(c)==1);
	printf("%d\n",str_replace_all(a, 'e', 'q')==1);
	printf("%d\n",str_replace_all(b,'e', 'q')==1);
	printf("%d\n",str_replace_all(c, 'r', 'q')==1);
	printf("%d\n",str_replace_first(a, 'o', 'f')==1);
	printf("%d\n",str_replace_first(b,'o', 'f')==1);
	printf("%d\n",str_replace_first(c, 'o', 'f')==1);
	printf("%d\n",str_replace_last(a, 'l', 'f')==1);
	printf("%d\n",str_replace_last(b, 'o', 'f')==1);
	printf("%d\n",str_replace_last(c, 'd', 'f')==1);
	return 0;
}